I’ve used three 2FA WordPress plugins so far. Here’s a review of all three of them and conclusion at the end.
1. Google Authenticator for WordPress by Julien Liabeuf
2. Google Authenticator – Two Factor Authentication by Miniorange
3. 2FAS – Two Factor Authentication by 2FAS

An unintended 301 redirect from http to https was occurring after installing a wildcard SSL certificate and turning on https in the WordPress settings > general. Took many discussions with SiteGround support to get to a reasonable conclusion.

Why is this important? Because this is one decision factor between single site or multi site installation. For a variety of reasons, I am not a fan of multi site. But if I keep on creating a bunch of single site WP installations, there is a lot of replications and use of space.

I set up a new domain, kumogado.com, on SiteGround and and measured the load time right after installation, with the default theme and nothing else loaded. No configuration, no plugins, no posts, nothing. SG’s supercache is on.

I set up a sub-domain a while ago and measured the load time right after set (Out of box), with the default theme and nothing else loaded. No configuration, no plugins, no posts, nothing. Various page loading speeds are measured and reported.